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发明名称
MICROWAVE TUBE
摘要
申请公布号
JPH01132030(A)
申请公布日期
1989.05.24
申请号
JP19870291127
申请日期
1987.11.17
申请人
NEC CORP
发明人
TOMIKAWA KUNIHIRO
分类号
H01J23/027
主分类号
H01J23/027
代理机构
代理人
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